Значение слова "G1" найдено в 3 источниках

G1

G1: translation

Phase of the eukaryotic cell cycle between the end of cell division and the start of DNA synthesis, S phase. G stands for gap.

найдено в "Military dictionary"

G-1: translation

Army or Marine Corps component manpower or personnel staff officer (Army division or higher staff, Marine Corps brigade or higher staff)

см. extended band of GSM